题目内容

9.以下几位哪一位不是英国的教育家:

A. 爱尔维修
B. 斯宾塞
C. 赫胥黎
D. 培根

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Fill in the blanks with the information you heard.Question: When will the students start their next important life stage?Answer: When they finish their ____________ and get their_________ .

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NPN型三极管导通之后,电位最高的是()极。

A. B
B. C
C. E
D

TTL电路比CMOS电路功耗()。

A. 大
B. 小
C. 差不多
D. 不确定

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